Answer: The scientist will perform another investigation in order to find out the role of certain genes in disease resistance.
Explanation-
As per the information given in the question, a mice having mutation in ear depicts same pattern of resistance when compared to another mice having normal ears. This indicates that the genes responsible for resistance are not related to genes that result in ear formation.
Therefore, to find out the effect of diet on disease resistance in rats, the scientist will perform another investigation in order to find out the role of certain genes in disease resistance.
Answer:
The correct answers are:
a. both
b. both
c. neither
d. only mitochondrial genomes.
Explanation:
Chloroplast and mitochondria are two organelles that have very similar characteristics and are present in plants and eukaryotic cells, respectively. Among the characteristics that both share are that both contain tRNA genes (which play a pivotal role in the inner organelle functions), both encode proteins that participate in electron transport pathways (since both organelles perform electron transport pathway for cellular respiration) and neither have all the genes necessary for function of the organelle are present (they need genomic DNA for this purpose). On the other hand, only mitochondrial genomes vary greatly in size from organism to organism, since chloroplast genome is very consistent, having 120 to 130 genes in total.
B. Location for carbon dioxide storage